Thanks for the feedback! So glad I included the walkthrough.
1. That did not strike me, I got lazy and implemented item deletion when wrench is used on vent regardless of state. I forgot it can softlock.
2. Its kinda implied by Ina's last statement, but you are correct that it should be clearer. Maybe I can reword that or something.
3. That is a good point. I'm not sure if anything can be done to restrict window maximisation on browser level (or even if all browsers will have the same behaviour at all), but I guess there can be a blocking warning based on window size.
Thank you so much for playing, and for your valuable feedback!!